Can anyone confirm if this Solar regulator works the way it should, the instructions are pigeon chinese/english. Have put two pics of displays. The left 24 amp works fine and displays battery/charge/load. No problems there. The middle one 20 amp..is the unsure one, it shows two greens, charge/battery (so think its charging but) you press the power button which shows a number display which we have set at 6, which we think is general use. the red displat only stays on for a few seconds then goes out..(unsure if the unit still on) At night the charge green light goes out which it should as no sun and the load light comes on. The right one 10 amp shows two greens charge/battery and when you push the power button the red led stays on, which is switched on and working fine. The main question is , is the middle one working right and still charging when red display goes out.